#!/usr/bin/python import cgi, cgitb, os, sys cgitb.enable(); # formats errors in HTML sys.stderr = sys.stdout print "Content-type: text/html" print print """ Temperature Conversion

""" form = cgi.FieldStorage() if not (form.has_key("from") and form.has_key("value")): print "Error: request did not provide the proper query string." else: # This illustrates alternative ways of extracting field # parameters. The getfirst method is safer. convert = form.getfirst("from") v = float(form["value"].value) if (convert=='F'): C = 5.0*(v-32)/9.0 print "%.1f F equals %.1f C" % (v,C) elif (convert=='C'): F = 9.0*v/5.0 + 32 print "%.1f C equals %.1f F" % (v,F) else: print "Error: from field must be either F or C" print ""